28 research outputs found

    Hydroxychloroquine decreases Th17-related cytokines in systemic lupus erythematosus and rheumatoid arthritis patients

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    OBJECTIVES: Hydroxychloroquine is an antimalarial agent that has been used in systemic lupus erythematosus and rheumatoid arthritis treatment for many years. Recently, novel mechanisms of action have been proposed, thereby broadening the therapeutic perspective of this medication. The purpose of this study was to evaluate the immunomodulatory activity of hydroxychloroquine in T helper 17 (Th17) cytokines in healthy individuals and patients. METHODS: Eighteen female patients with systemic lupus erythematosus (mean age 39.0±12.9 years) and 13 female patients with rheumatoid arthritis (mean age 51.5±7.7 years) were recruited from Universidade Federal de Pernambuco-Brazil. The patients were included after fulfilling four classification criteria for systemic lupus erythematosus or rheumatoid arthritis from the American College of Rheumatology. After being stimulated with phorbol 12-myristate 13-acetate and ionomycin in the absence or presence of different concentrations of hydroxychloroquine, the interleukin 6, 17 and 22 levels were quantified with an enzyme-linked immunosorbent assay in culture supernatants of peripheral blood mononuclear cells from healthy individuals and patients. RESULTS: We demonstrated that in peripheral blood mononuclear cells from healthy volunteers and in systemic lupus erythematosus and rheumatoid arthritis patients, there was a significant reduction in the IL-6, IL-17 and IL-22 supernatant levels after adding hydroxychloroquine. CONCLUSIONS Our in vitro results demonstrated that hydroxychloroquine inhibits IL-6, IL-17 and IL-22 production and contributes to a better understanding of the mechanism of action of this medication

    Brazilian recommendations on the safety and effectiveness of the yellow fever vaccination in patients with chronic immune-mediated inflammatory diseases

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    Background: In Brazil, we are facing an alarming epidemic scenario of Yellow fever (YF), which is reaching the most populous areas of the country in unvaccinated people. Vaccination is the only effective tool to prevent YF. In special situations, such as patients with chronic immune-mediated inflammatory diseases (CIMID), undergoing immunosuppressive therapy, as a higher risk of severe adverse events may occur, assessment of the risk-benefit ratio of the yellow fever vaccine (YFV) should be performed on an individual level. Main body of the abstract: Faced with the scarcity of specific orientation on YFV for this special group of patients, the Brazilian Rheumatology Society (BRS) endorsed a project aiming the development of individualized YFV recommendations for patients with CIMID, guided by questions addressed by both medical professionals and patients, followed an internationally validated methodology (GIN-McMaster Guideline Development). Firstly, a systematic review was carried out and an expert panel formed to take part of the decision process, comprising BRS clinical practitioners, as well as individuals from the Brazilian Dermatology Society (BDS), Brazilian Inflammatory Bowel Diseases Study Group (GEDIIB), and specialists on infectious diseases and vaccination (from Tropical Medicine, Infectious Diseases and Immunizations National Societies); in addition, two representatives of patient groups were included as members of the panel. When the quality of the evidence was low or there was a lack of evidence to determine the recommendations, the decisions were based on the expert opinion panel and a Delphi approach was performed. A recommendation was accepted upon achieving ≄80% agreement among the panel, including the patient representatives. As a result, eight recommendations were developed regarding the safety of YFV in patients with CIMID, considering the immunosuppression degree conferred by the treatment used. It was not possible to establish recommendations on the effectiveness of YFV in these patients as there is no consistent evidence to support these recommendations. Conclusion: This paper approaches a real need, assessed by clinicians and patient care groups, to address specific questions on the management of YFV in patients with CIMID living or traveling to YF endemic areas, involving specialists from many areas together with patients, and might have global applicability, contributing to and supporting vaccination practices. We recommended a shared decision-making approach on taking or not the YFV

    Atendimento aos pacientes do Centro de Oncologia Bucal da Faculdade de Odontologia de Araçatuba

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    O Centro de Oncologia Bucal (COB) da Faculdade de Odontologia da UNESP, CĂąmpus de Araçatuba, realiza o tratamento interdisciplinar de pacientes portadores de patologias bucais benignas e neoplasias malignas de cabeça e pescoço para a cidade de Araçatuba e regiĂŁo, sendo referĂȘncia para o tratamento dessas enfermidades. Este projeto proporciona a inter-relação do paciente com uma equipe de profissionais necessĂĄrios ao seu atendimento integral, como cirurgiĂŁo-dentista, estomatologista, oncologista, cirurgiĂŁo de cabeça e pescoço, anestesista, fisioterapeuta, fonoaudiĂłlogo, protesista bucomaxilofacial, enfermeiro e epidemiologista. Socialmente, o projeto atende uma clientela externa que possui necessidade de diagnĂłstico e tratamento dessas doenças bucais. AlĂ©m desses pacientes, sĂŁo beneficiados os alunos de graduação voluntĂĄrios e bolsistas do projeto. A ajuda financeira desse projeto permite a compra de alguns materiais necessĂĄrios para aumentar e otimizar o nĂșmero de atendimentos, principalmente na ĂĄrea de DentĂ­stica Restauradora em pacientes oncolĂłgicos. O projeto objetiva ampliar os atendimentos de pacientes portadores dessas doenças, orientar os alunos nos procedimentos de exame clĂ­nico, complementares e cirĂșrgicos, visando ao diagnĂłstico e tratamento adequados. Os alunos de graduação bolsistas e voluntĂĄrios do projeto reciclam todos os estudos realizados na graduação e, em alguns casos, despertam a vontade de realizar Iniciação CientĂ­fica e Mestrado. Os demais profissionais da saĂșde realizam o tratamento dos pacientes com cĂąncer bucal de forma integrada e humanizada. Como resultado social, o projeto atendeu pacientes portadores de patologia bucais de Araçatuba e regiĂŁo, em especial os portadores de neoplasias malignas da boca, sendo esta formada em sua maioria por pessoas com situação socioeconĂŽmica de carĂȘncia. A primeira execução deste projeto foi hĂĄ quatro anos, quando foram beneficiados 17 alunos de graduação, sendo seis com bolsa de extensĂŁo universitĂĄria (inicialmente trĂȘs alunos foram contemplados e considerando que estes receberam bolsa de Iniciação CientĂ­fica de agĂȘncia de fomento Ă  pesquisa, outros trĂȘs alunos de graduação substituĂ­ram os trĂȘs primeiros), nove alunos da pĂłs-graduação e aproximadamente 600 pacientes portadores de patologia bucais de Araçatuba e regiĂŁo. Esse atendimento especializado no Centro evita que o paciente se desloque para cidades mais distantes em busca de tratamento especializado, bem como traz melhoria da sua qualidade de vida

    Atendimento aos pacientes do Centro de Oncologia Bucal da Faculdade de Odontologia de Araçatuba

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    O Centro de Oncologia Bucal (COB) da Faculdade de Odontologia da UNESP, CĂąmpus de Araçatuba, realiza o tratamento interdisciplinar de pacientes portadores de patologias bucais benignas e neoplasias malignas de cabeça e pescoço para a cidade de Araçatuba e regiĂŁo, sendo referĂȘncia para o tratamento dessas enfermidades. Este projeto proporciona a inter-relação do paciente com uma equipe de profissionais necessĂĄrios ao seu atendimento integral, como cirurgiĂŁo-dentista, estomatologista, oncologista, cirurgiĂŁo de cabeça e pescoço, anestesista, fisioterapeuta, fonoaudiĂłlogo, protesista bucomaxilofacial, enfermeiro e epidemiologista. Socialmente, o projeto atende uma clientela externa que possui necessidade de diagnĂłstico e tratamento dessas doenças bucais. AlĂ©m desses pacientes, sĂŁo beneficiados os alunos de graduação voluntĂĄrios e bolsistas do projeto. A ajuda financeira desse projeto permite a compra de alguns materiais necessĂĄrios para aumentar e otimizar o nĂșmero de atendimentos, principalmente na ĂĄrea de DentĂ­stica Restauradora em pacientes oncolĂłgicos. O projeto objetiva ampliar os atendimentos de pacientes portadores dessas doenças, orientar os alunos nos procedimentos de exame clĂ­nico, complementares e cirĂșrgicos, visando ao diagnĂłstico e tratamento adequados. Os alunos de graduação bolsistas e voluntĂĄrios do projeto reciclam todos os estudos realizados na graduação e, em alguns casos, despertam a vontade de realizar Iniciação CientĂ­fica e Mestrado. Os demais profissionais da saĂșde realizam o tratamento dos pacientes com cĂąncer bucal de forma integrada e humanizada. Como resultado social, o projeto atendeu pacientes portadores de patologia bucais de Araçatuba e regiĂŁo, em especial os portadores de neoplasias malignas da boca, sendo esta formada em sua maioria por pessoas com situação socioeconĂŽmica de carĂȘncia. A primeira execução deste projeto foi hĂĄ quatro anos, quando foram beneficiados 17 alunos de graduação, sendo seis com bolsa de extensĂŁo universitĂĄria (inicialmente trĂȘs alunos foram contemplados e considerando que estes receberam bolsa de Iniciação CientĂ­fica de agĂȘncia de fomento Ă  pesquisa, outros trĂȘs alunos de graduação substituĂ­ram os trĂȘs primeiros), nove alunos da pĂłs-graduação e aproximadamente 600 pacientes portadores de patologia bucais de Araçatuba e regiĂŁo. Esse atendimento especializado no Centro evita que o paciente se desloque para cidades mais distantes em busca de tratamento especializado, bem como traz melhoria da sua qualidade de vida

    Atendimento aos pacientes do Centro de Oncologia Bucal da Faculdade de Odontologia de Araçatuba

    Get PDF
    O Centro de Oncologia Bucal (COB) da Faculdade de Odontologia da UNESP, CĂąmpus de Araçatuba, realiza o tratamento interdisciplinar de pacientes portadores de patologias bucais benignas e neoplasias malignas de cabeça e pescoço para a cidade de Araçatuba e regiĂŁo, sendo referĂȘncia para o tratamento dessas enfermidades. Este projeto proporciona a inter-relação do paciente com uma equipe de profissionais necessĂĄrios ao seu atendimento integral, como cirurgiĂŁo-dentista, estomatologista, oncologista, cirurgiĂŁo de cabeça e pescoço, anestesista, fisioterapeuta, fonoaudiĂłlogo, protesista bucomaxilofacial, enfermeiro e epidemiologista. Socialmente, o projeto atende uma clientela externa que possui necessidade de diagnĂłstico e tratamento dessas doenças bucais. AlĂ©m desses pacientes, sĂŁo beneficiados os alunos de graduação voluntĂĄrios e bolsistas do projeto. A ajuda financeira desse projeto permite a compra de alguns materiais necessĂĄrios para aumentar e otimizar o nĂșmero de atendimentos, principalmente na ĂĄrea de DentĂ­stica Restauradora em pacientes oncolĂłgicos. O projeto objetiva ampliar os atendimentos de pacientes portadores dessas doenças, orientar os alunos nos procedimentos de exame clĂ­nico, complementares e cirĂșrgicos, visando ao diagnĂłstico e tratamento adequados. Os alunos de graduação bolsistas e voluntĂĄrios do projeto reciclam todos os estudos realizados na graduação e, em alguns casos, despertam a vontade de realizar Iniciação CientĂ­fica e Mestrado. Os demais profissionais da saĂșde realizam o tratamento dos pacientes com cĂąncer bucal de forma integrada e humanizada. Como resultado social, o projeto atendeu pacientes portadores de patologia bucais de Araçatuba e regiĂŁo, em especial os portadores de neoplasias malignas da boca, sendo esta formada em sua maioria por pessoas com situação socioeconĂŽmica de carĂȘncia. A primeira execução deste projeto foi hĂĄ quatro anos, quando foram beneficiados 17 alunos de graduação, sendo seis com bolsa de extensĂŁo universitĂĄria (inicialmente trĂȘs alunos foram contemplados e considerando que estes receberam bolsa de Iniciação CientĂ­fica de agĂȘncia de fomento Ă  pesquisa, outros trĂȘs alunos de graduação substituĂ­ram os trĂȘs primeiros), nove alunos da pĂłs-graduação e aproximadamente 600 pacientes portadores de patologia bucais de Araçatuba e regiĂŁo. Esse atendimento especializado no Centro evita que o paciente se desloque para cidades mais distantes em busca de tratamento especializado, bem como traz melhoria da sua qualidade de vida

    NEOTROPICAL XENARTHRANS: a data set of occurrence of xenarthran species in the Neotropics

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    Xenarthrans – anteaters, sloths, and armadillos – have essential functions for ecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosystem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts with 24 domestic dogs, these species have been threatened locally, regionally, or even across their full distribution ranges. The Neotropics harbor 21 species of armadillos, ten anteaters, and six sloths. Our dataset includes the families Chlamyphoridae (13), Dasypodidae (7), Myrmecophagidae (3), Bradypodidae (4), and Megalonychidae (2). We have no occurrence data on Dasypus pilosus (Dasypodidae). Regarding Cyclopedidae, until recently, only one species was recognized, but new genetic studies have revealed that the group is represented by seven species. In this data-paper, we compiled a total of 42,528 records of 31 species, represented by occurrence and quantitative data, totaling 24,847 unique georeferenced records. The geographic range is from the south of the USA, Mexico, and Caribbean countries at the northern portion of the Neotropics, to its austral distribution in Argentina, Paraguay, Chile, and Uruguay. Regarding anteaters, Myrmecophaga tridactyla has the most records (n=5,941), and Cyclopes sp. has the fewest (n=240). The armadillo species with the most data is Dasypus novemcinctus (n=11,588), and the least recorded for Calyptophractus retusus (n=33). With regards to sloth species, Bradypus variegatus has the most records (n=962), and Bradypus pygmaeus has the fewest (n=12). Our main objective with Neotropical Xenarthrans is to make occurrence and quantitative data available to facilitate more ecological research, particularly if we integrate the xenarthran data with other datasets of Neotropical Series which will become available very soon (i.e. Neotropical Carnivores, Neotropical Invasive Mammals, and Neotropical Hunters and Dogs). Therefore, studies on trophic cascades, hunting pressure, habitat loss, fragmentation effects, species invasion, and climate change effects will be possible with the Neotropical Xenarthrans dataset

    Amazonia Camtrap: a data set of mammal, bird, and reptile species recorded with camera traps in the Amazon forest.

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    Abstract : The Amazon forest has the highest biodiversity on Earth. However, information on Amazonian vertebrate diversity is still deficient and scatteredacross the published, peer-reviewed, and gray literature and in unpublishedraw data. Camera traps are an effective non-invasive method of surveying vertebrates, applicable to different scales of time and space. In this study, we organized and standardized camera trap records from different Amazonregions to compile the most extensive data set of inventories of mammal,bird, and reptile species ever assembled for the area. The complete data setcomprises 154,123 records of 317 species (185 birds, 119 mammals, and13 reptiles) gathered from surveys from the Amazonian portion of eightcountries (Brazil, Bolivia, Colombia, Ecuador, French Guiana, Peru,Suriname, and Venezuela). The most frequently recorded species per taxawere: mammals:Cuniculus paca (11,907 records); birds: Pauxi tuberosa (3713 records); and reptiles:Tupinambis teguixin(716 records). The infor-mation detailed in this data paper opens up opportunities for new ecological studies at different spatial and temporal scales, allowing for a moreaccurate evaluation of the effects of habitat loss, fragmentation, climatechange, and other human-mediated defaunation processes in one of themost important and threatened tropical environments in the world. The data set is not copyright restricted; please cite this data paper when usingits data in publications and we also request that researchers and educator sinform us of how they are using these data

    Conflitos sociais e afirmação territorial da comunidade quilombola Ilha São Vicente, Araguatins, Tocantins

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    A comunidade quilombola Ilha SĂŁo Vicente ― localizada no municĂ­pio de Araguatins, Tocantins ― foi reconhecida pela Fundação Cultural Palmares (FCP) no ano de 2010. Neste trabalho, objetiva-se analisar os processos sĂłcio-histĂłricos formadores dos quilombolas da escravidĂŁo Ă  reuniĂŁo em comunidade na Ilha SĂŁo Vicente; da organização produtiva do territĂłrio, e dos desafios contemporĂąneos que a comunidade vivencia. Trata-se de uma anĂĄlise horizontal dos processos moleculares que configuram o territĂłrio e as territorialidades da comunidade quilombola.The quilombola community SĂŁo Vicente Island is located in the municipality of Araguatins, state of Tocantins, in Brazil. It was recognized by the Palmares Cultural Foundation (FCP) in 2010. In this work, we intend to analyze the socio-historical processes that formed the remaining quilombo communities, from slavery to community organization on SĂŁo Vicente Island, their means of collective production in their territory and the contemporary challenges they face. It is a horizontal analysis of the molecular processes that configure the territory and territorialities of the quilombola community.La communautĂ© quilombola Ilha SĂŁo Vicente est situĂ©e dans la municipalitĂ© d'Araguatins, dans l'État de Tocantins, au BrĂ©sil. Elle a Ă©tĂ© reconnue par la Fondation Culturelle Palmares (FCP) en 2010. Dans ce travail, nous avons l'intention d'analyser les processus socio-historiques qui ont formĂ© les communautĂ©s de quilombo, de l'esclavage Ă  l'organisation communautaire sur l'Ăźle de SĂŁo Vicente, leurs moyens de production collective sur leur territoire et les dĂ©fis contemporains auxquels elles sont confrontĂ©es. Il s'agit d'une analyse horizontale des processus molĂ©culaires qui configurent le territoire et les territorialitĂ©s de la communautĂ© quilombola

    PPARÎł Agonists in Adaptive Immunity: What Do Immune Disorders and Their Models Have to Tell Us?

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    Adaptive immunity has evolved as a very powerful and highly specialized tool of host defense. Its classical protagonists are lymphocytes of the T- and B-cell lineage. Cytokines and chemokines play a key role as effector mechanisms of the adaptive immunity. Some autoimmune and inflammatory diseases are caused by disturbance of the adaptive immune system. Recent advances in understanding the pathogenesis of autoimmune diseases have led to research on new molecular and therapeutic targets. PPARÎł are members of the nuclear receptor superfamily and are transcription factors involved in lipid metabolism as well as innate and adaptive immunity. PPARÎł is activated by synthetic and endogenous ligands. Previous studies have shown that PPAR agonists regulate T-cell survival, activation and T helper cell differentiation into effector subsets: Th1, Th2, Th17, and Tregs. PPARÎł has also been associated with B cells. The present review addresses these issues by placing PPARÎł agonists in the context of adaptive immune responses and the relation of the activation of these receptors with the expression of cytokines involved in adaptive immunity

    The Role of PPAR Gamma in Systemic Sclerosis

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    Fibrosis is recognized as an important feature of many chronic diseases, such as systemic sclerosis (SSc), an autoimmune disease of unknown etiology, characterized by immune dysregulation and vascular injury, followed by progressive fibrosis affecting the skin and multiple internal organs. SSc has a poor prognosis because no therapy has been shown to reverse or arrest the progression of fibrosis, representing a major unmet medical need. Recently, antifibrotic effects of PPARÎł ligands have been studied in vitro and in vivo and some theories have emerged leading to new insights. Aberrant PPARÎł function seems to be implicated in pathological fibrosis in the skin and lungs. This antifibrotic effect is mainly related to the inhibition of TGF-ÎČ/Smad signal transduction but other pathways can be involved. This review focused on recent studies that identified PPARÎł as an important novel pathway with critical roles in regulating connective tissue homeostasis, with emphasis on skin and lung fibrosis and its role on systemic sclerosis
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